Solubility Constants of Metal Oxides, Metal Hydroxides and Metal Hydroxide Salts in Aqueous Solution

2016 ◽  
Author(s):  
W. Feitkneght ◽  
P. Schindler
Keyword(s):  
Aqueous Solution ◽  
Metal Oxides ◽  
Metal Hydroxide ◽  
Metal Hydroxides

scholarly journals Nickel–cobalt hydroxide: a positive electrode for supercapacitor applications

RSC Advances ◽  
2020 ◽  
Vol 10 (33) ◽  
pp. 19410-19418
Author(s):  
M. Sangeetha Vidhya ◽  
G. Ravi ◽  
R. Yuvakkumar ◽  
Dhayalan Velauthapillai ◽  
M. Thambidurai ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Electrode Material ◽  
Positive Electrode ◽  
Cobalt Hydroxide ◽  
Critical Component ◽  
Metal Hydroxides ◽  
Nickel Cobalt ◽  
Supercapacitor Applications

So far, numerous metal oxides and metal hydroxides have been reported as an electrode material, a critical component in supercapacitors that determines the operation window of the capacitor.

Electrochemical route for accessing amorphous mixed-metal hydroxide nanospheres and magnetism

RSC Advances ◽  
2015 ◽  
Vol 5 (56) ◽  
pp. 45359-45367 ◽  
Author(s):  
H. B. Li ◽  
Y. Q. Gao ◽  
G. W. Yang
Keyword(s):  
Metal Hydroxide ◽  
Electrochemical Technique ◽  
Homogeneous Distribution ◽  
Metal Hydroxides ◽  
Mixed Metal ◽  
Mixed Metal Hydroxides

Amorphous mixed-metal hydroxides nanospheres with a homogeneous distribution of metals in compositions including binary Fe–Co, Fe–Ni and Co–Ni and ternary Ni–Co–Fe hydroxides were prepared via a simple, facile and green electrochemical technique.

scholarly journals CHITOSAN-TEMPLATED LIGHTWEIGHT SPINEL CoAl2O4 NANOFIBRIL AEROGELS

2018 ◽  
Vol 56 (1A) ◽  
pp. 135
Author(s):  
Chau The Lieu Trang
Keyword(s):  
Aqueous Solution ◽  
Aluminum Hydroxide ◽  
Water Soluble ◽  
Metal Hydroxides ◽  
Cobalt Ions ◽  
Spider Web ◽  
Magnetic Ceramics ◽  
Aluminum Ions ◽  
Soluble Aluminum ◽  
Mixed Metal Hydroxides

We present lightweight macro-mesoporous spinel CoAl2O4 nanostructured aerogels derived from water-soluble aluminum-chitosan complexes. Chitosan nanofibrils interact with aluminum ions to swell into hydrogels. The aluminum-induced swelling is extended to dissolve the hydrogels in water to form a homogeneous aluminum-chitosan aqueous solution. The addition of cobalt ions in the aluminum-chitosan liquids which are solidified by lyophilization to generate cotton-like aerogel composites. Uniform incorporation of cobalt-aluminum hydroxide ions onto chitosan leads nanofibrils to serve as a hierarchical template to support mixed metal hydroxides in the aerogel composites. We investigated the thermal removal of chitosan template in the composites to obtain spinel CoAl2O4 aerogels that truly replicate spider web-like fibrillar networks of chitosan template. Enlarged porosity, high crystallinity, and lightweight make the CoAl2O4 aerogels useful as a colorful nano-pigment for magnetic ceramics.

Semiempirical Correlation between the Optical Band Gap of Oxides and Hydroxides and the Electronegativity of Their Constituents

2000 ◽  
Vol 654 ◽  
Author(s):  
Francesco Di Quarto ◽  
Monica Santamaria ◽  
Salvatore Piazza ◽  
Carmelo Sunseri
Keyword(s):  
Metal Oxides ◽  
Band Gap ◽  
Optical Band Gap ◽  
Experimental Results ◽  
Passive Films ◽  
Metal Hydroxides ◽  
Amorphous Tio2 ◽  
The Difference

AbstractOn the basis of new experimental results a previous proposed correlation between the optical band gap of oxides and the difference of electronegativity of their constituents is extended to mixed crystalline and amorphous TiO2-Fe2O3 (d,d-metal oxides) as well as to amorphous passive films grown on Al-Ta, Al-Ti, Al-Nb and Al-W alloys (sp,d-metal oxides). Moreover in analogy with previous results on anhydrous oxides, a correlation is proposed between the optical band gap of hydroxides and the electronegativities of their constituents after substituting the electronegativity of hydroxilic group to that of the oxygen. Like in the case of anhydrous oxides, two different interpolation lines have been found for sp-metal and d-metal hydroxides, respectively.

An in situ electrosynthesis of metal hydroxides and their application for adsorption of 4-chloro-2-methylphenoxyacetic acid (MCPA) from aqueous solution

2014 ◽  
Vol 2 (4) ◽  
pp. 2068-2077 ◽  
Author(s):  
Ramakrishnan Kamaraj ◽  
Donald Jonas Davidson ◽  
Ganapathy Sozhan ◽  
Subramanyan Vasudevan
Keyword(s):  
Aqueous Solution ◽  
Metal Hydroxides
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